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<?php
/**
* @package Joomla.Platform
* @subpackage Application
*
* @copyright Copyright (C) 2005 - 2014 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE
*/
/**
* Base on Joomla core file:
* libraries/joomla/application/module/helper.php
*/
defined('JPATH_PLATFORM') or die;
jimport('joomla.application.component.helper');
/**
* Module helper class
*
* @package Joomla.Platform
* @subpackage Application
* @since 11.1
*/
abstract class JModuleHelper
{
/**
* Get module by name (real, eg 'Breadcrumbs' or folder, eg 'mod_breadcrumbs')
*
* @param string $name The name of the module
* @param string $title The title of the module, optional
*
* @return object The Module object
*
* @since 11.1
*/
public static function &getModule($name, $title = null)
{
$result = null;
$modules =& JModuleHelper::_load();
$total = count($modules);
for ($i = 0; $i < $total; $i++)
{
// Match the name of the module
if ($modules[$i]->name == $name || $modules[$i]->module == $name)
{
// Match the title if we're looking for a specific instance of the module
if (!$title || $modules[$i]->title == $title)
{
// Found it
$result = &$modules[$i];
break; // Found it
}
}
}
// If we didn't find it, and the name is mod_something, create a dummy object
if (is_null($result) && substr($name, 0, 4) == 'mod_')
{
$result = new stdClass;
$result->id = 0;
$result->title = '';
$result->module = $name;
$result->position = '';
$result->content = '';
$result->showtitle = 0;
$result->control = '';
$result->params = '';
$result->user = 0;
}
return $result;
}
/**
* Get modules by position
*
* @param string $position The position of the module
*
* @return array An array of module objects
*
* @since 11.1
*/
public static function &getModules($position)
{
$position = strtolower($position);
$result = array();
$modules =& JModuleHelper::_load();
$total = count($modules);
for ($i = 0; $i < $total; $i++)
{
if ($modules[$i]->position == $position)
{
$result[] = &$modules[$i];
}
}
if (count($result) == 0)
{
if (JRequest::getBool('tp') && JComponentHelper::getParams('com_templates')->get('template_positions_display'))
{
$result[0] = JModuleHelper::getModule('mod_' . $position);
$result[0]->title = $position;
$result[0]->content = $position;
$result[0]->position = $position;
}
}
return $result;
}
/**
* Checks if a module is enabled
*
* @param string $module The module name
*
* @return boolean
*
* @since 11.1
*/
public static function isEnabled($module)
{
$result = JModuleHelper::getModule($module);
return !is_null($result);
}
/**
* Render the module.
*
* @param object $module A module object.
* @param array $attribs An array of attributes for the module (probably from the XML).
*
* @return string The HTML content of the module output.
*
* @since 11.1
*/
public static function renderModule($module, $attribs = array())
{
static $chrome;
if (constant('JDEBUG'))
{
JProfiler::getInstance('Application')->mark('beforeRenderModule ' . $module->module . ' (' . $module->title . ')');
}
$app = JFactory::getApplication();
// Record the scope.
$scope = $app->scope;
// Set scope to component name
$app->scope = $module->module;
// Get module parameters
$params = new JRegistry;
$params->loadString($module->params);
// Get module path
$module->module = preg_replace('/[^A-Z0-9_\.-]/i', '', $module->module);
$path = JPATH_BASE . '/modules/' . $module->module . '/' . $module->module . '.php';
// Load the module
// $module->user is a check for 1.0 custom modules and is deprecated refactoring
if (empty($module->user) && file_exists($path))
{
$lang = JFactory::getLanguage();
// 1.5 or Core then 1.6 3PD
$lang->load($module->module, JPATH_BASE, null, false, true)
|| $lang->load($module->module, dirname($path), null, false, true);
$content = '';
ob_start();
include $path;
$module->content = ob_get_contents() . $content;
ob_end_clean();
}
// Load the module chrome functions
if (!$chrome)
{
$chrome = array();
}
include_once JPATH_THEMES . '/system/html/modules.php';
$chromePath = JPATH_THEMES . '/' . $app->getTemplate() . '/html/modules.php';
if (!isset($chrome[$chromePath]))
{
if (file_exists($chromePath))
{
// Read module chrome function name from definition file
if (preg_match_all('/function\s+(modChrome_[a-z0-9_]+)/i', file_get_contents($chromePath), $matches, PREG_SET_ORDER))
{
$module_chrome_loaded = false;
// Make sure module chrome is loaded only 1 time
foreach ($matches as $match)
{
if (function_exists($match[1]))
{
$module_chrome_loaded = true;
break;
}
}
// Include module chrome definition file
if ( ! $module_chrome_loaded)
{
include_once $chromePath;
}
}
}
$chrome[$chromePath] = true;
}
/* Trigger onJSNTPLRenderModule to overide Chrome module */
if (!file_exists($chromePath))
{
$result = $app->triggerEvent( 'onJSNTPLRenderModule', array(&$module, &$attribs));
if (!is_array($result))
{
$result = array($result);
}
if ( array_search(true, $result, true ) !== false)
{
return '';
}
$chrome[$chromePath] = true;
}
/* Trigger onJSNTPLRenderModule to overide Chrome module */
// Make sure a style is set
if (!isset($attribs['style']))
{
$attribs['style'] = 'none';
}
// Dynamically add outline style
if (JRequest::getBool('tp') && JComponentHelper::getParams('com_templates')->get('template_positions_display'))
{
$attribs['style'] .= ' outline';
}
foreach (explode(' ', $attribs['style']) as $style)
{
$chromeMethod = 'modChrome_' . $style;
// Apply chrome and render module
if (function_exists($chromeMethod))
{
$module->style = $attribs['style'];
ob_start();
$chromeMethod($module, $params, $attribs);
$module->content = ob_get_contents();
ob_end_clean();
}
}
//revert the scope
$app->scope = $scope;
if (constant('JDEBUG'))
{
JProfiler::getInstance('Application')->mark('afterRenderModule ' . $module->module . ' (' . $module->title . ')');
}
return $module->content;
}
/**
* Get the path to a layout for a module
*
* @param string $module The name of the module
* @param string $layout The name of the module layout. If alternative layout, in the form template:filename.
*
* @return string The path to the module layout
*
* @since 11.1
*/
public static function getLayoutPath($module, $layout = 'default')
{
$template = JFactory::getApplication()->getTemplate();
$defaultLayout = $layout;
if (strpos($layout, ':') !== false)
{
// Get the template and file name from the string
$temp = explode(':', $layout);
$template = ($temp[0] == '_') ? $template : $temp[0];
$layout = $temp[1];
$defaultLayout = ($temp[1]) ? $temp[1] : 'default';
}
// Build the template and base path for the layout
$tPath = JPATH_THEMES . '/' . $template . '/html/' . $module . '/' . $layout . '.php';
$bPath = JPATH_BASE . '/modules/' . $module . '/tmpl/' . $defaultLayout . '.php';
$dPath = JPATH_BASE . '/modules/' . $module . '/tmpl/default.php';
/* Trigger onJSNTPLGetModuleLayoutPath to get overidden layout module */
$JSNTPLfPath = '';
$app = JFactory::getApplication();
$result = $app->triggerEvent('onJSNTPLGetModuleLayoutPath', array($module, $layout));
if (is_array($result))
{
foreach ($result as $path)
{
if ($path !== false && is_file($path))
{
$JSNTPLfPath = $path;
}
}
}
/* Trigger onJSNTPLGetModuleLayoutPath to get overidden layout module */
// If the template has a layout override use it
if (file_exists($tPath))
{
return $tPath;
}
if ($JSNTPLfPath != '' && file_exists($JSNTPLfPath))
{
return $JSNTPLfPath;
}
elseif (file_exists($bPath))
{
return $bPath;
}
else
{
return $dPath;
}
}
/**
* Load published modules.
*
* @return array
*
* @since 11.1
*/
protected static function &_load()
{
static $clean;
if (isset($clean))
{
return $clean;
}
$Itemid = JRequest::getInt('Itemid');
$app = JFactory::getApplication();
$user = JFactory::getUser();
$groups = implode(',', $user->getAuthorisedViewLevels());
$lang = JFactory::getLanguage()->getTag();
$clientId = (int) $app->getClientId();
$cache = JFactory::getCache('com_modules', '');
$cacheid = md5(serialize(array($Itemid, $groups, $clientId, $lang)));
if (!($clean = $cache->get($cacheid)))
{
$db = JFactory::getDbo();
$query = $db->getQuery(true);
$query->select('m.id, m.title, m.module, m.position, m.content, m.showtitle, m.params, mm.menuid');
$query->from('#__modules AS m');
$query->join('LEFT', '#__modules_menu AS mm ON mm.moduleid = m.id');
$query->where('m.published = 1');
$query->join('LEFT', '#__extensions AS e ON e.element = m.module AND e.client_id = m.client_id');
$query->where('e.enabled = 1');
$date = JFactory::getDate();
$now = $date->toSql();
$nullDate = $db->getNullDate();
$query->where('(m.publish_up = ' . $db->Quote($nullDate) . ' OR m.publish_up <= ' . $db->Quote($now) . ')');
$query->where('(m.publish_down = ' . $db->Quote($nullDate) . ' OR m.publish_down >= ' . $db->Quote($now) . ')');
$query->where('m.access IN (' . $groups . ')');
$query->where('m.client_id = ' . $clientId);
$query->where('(mm.menuid = ' . (int) $Itemid . ' OR mm.menuid <= 0)');
// Filter by language
if ($app->isSite() && $app->getLanguageFilter())
{
$query->where('m.language IN (' . $db->Quote($lang) . ',' . $db->Quote('*') . ')');
}
$query->order('m.position, m.ordering');
// Set the query
$db->setQuery($query);
$modules = $db->loadObjectList();
$clean = array();
if ($db->getErrorNum())
{
JError::raiseWarning(500, JText::sprintf('JLIB_APPLICATION_ERROR_MODULE_LOAD', $db->getErrorMsg()));
return $clean;
}
// Apply negative selections and eliminate duplicates
$negId = $Itemid ? -(int) $Itemid : false;
$dupes = array();
for ($i = 0, $n = count($modules); $i < $n; $i++)
{
$module = &$modules[$i];
// The module is excluded if there is an explicit prohibition
$negHit = ($negId === (int) $module->menuid);
if (isset($dupes[$module->id]))
{
// If this item has been excluded, keep the duplicate flag set,
// but remove any item from the cleaned array.
if ($negHit)
{
unset($clean[$module->id]);
}
continue;
}
$dupes[$module->id] = true;
// Only accept modules without explicit exclusions.
if (!$negHit)
{
// Determine if this is a 1.0 style custom module (no mod_ prefix)
// This should be eliminated when the class is refactored.
// $module->user is deprecated.
$file = $module->module;
$custom = substr($file, 0, 4) == 'mod_' ? 0 : 1;
$module->user = $custom;
// 1.0 style custom module name is given by the title field, otherwise strip off "mod_"
$module->name = $custom ? $module->module : substr($file, 4);
$module->style = null;
$module->position = strtolower($module->position);
$clean[$module->id] = $module;
}
}
unset($dupes);
// Return to simple indexing that matches the query order.
$clean = array_values($clean);
$cache->store($clean, $cacheid);
}
return $clean;
}
/**
* Module cache helper
*
* Caching modes:
* To be set in XML:
* 'static' One cache file for all pages with the same module parameters
* 'oldstatic' 1.5 definition of module caching, one cache file for all pages
* with the same module id and user aid,
* 'itemid' Changes on itemid change, to be called from inside the module:
* 'safeuri' Id created from $cacheparams->modeparams array,
* 'id' Module sets own cache id's
*
* @param object $module Module object
* @param object $moduleparams Module parameters
* @param object $cacheparams Module cache parameters - id or url parameters, depending on the module cache mode
*
* @return string
*
* @since 11.1
*
* @link JFilterInput::clean()
*/
public static function moduleCache($module, $moduleparams, $cacheparams)
{
if (!isset($cacheparams->modeparams))
{
$cacheparams->modeparams = null;
}
if (!isset($cacheparams->cachegroup))
{
$cacheparams->cachegroup = $module->module;
}
$user = JFactory::getUser();
$cache = JFactory::getCache($cacheparams->cachegroup, 'callback');
$conf = JFactory::getConfig();
// Turn cache off for internal callers if parameters are set to off and for all logged in users
if ($moduleparams->get('owncache', null) === '0' || $conf->get('caching') == 0 || $user->get('id'))
{
$cache->setCaching(false);
}
// module cache is set in seconds, global cache in minutes, setLifeTime works in minutes
$cache->setLifeTime($moduleparams->get('cache_time', $conf->get('cachetime') * 60) / 60);
$wrkaroundoptions = array('nopathway' => 1, 'nohead' => 0, 'nomodules' => 1, 'modulemode' => 1, 'mergehead' => 1);
$wrkarounds = true;
$view_levels = md5(serialize($user->getAuthorisedViewLevels()));
switch ($cacheparams->cachemode)
{
case 'id':
$ret = $cache->get(
array($cacheparams->class, $cacheparams->method),
$cacheparams->methodparams,
$cacheparams->modeparams,
$wrkarounds,
$wrkaroundoptions
);
break;
case 'safeuri':
$secureid = null;
if (is_array($cacheparams->modeparams))
{
$uri = JRequest::get();
$safeuri = new stdClass;
foreach ($cacheparams->modeparams as $key => $value)
{
// Use int filter for id/catid to clean out spamy slugs
if (isset($uri[$key]))
{
$safeuri->$key = JRequest::_cleanVar($uri[$key], 0, $value);
}
}
}
$secureid = md5(serialize(array($safeuri, $cacheparams->method, $moduleparams)));
$ret = $cache->get(
array($cacheparams->class, $cacheparams->method),
$cacheparams->methodparams,
$module->id . $view_levels . $secureid,
$wrkarounds,
$wrkaroundoptions
);
break;
case 'static':
$ret = $cache->get(
array($cacheparams->class,
$cacheparams->method),
$cacheparams->methodparams,
$module->module . md5(serialize($cacheparams->methodparams)),
$wrkarounds,
$wrkaroundoptions
);
break;
case 'oldstatic': // provided for backward compatibility, not really usefull
$ret = $cache->get(
array($cacheparams->class, $cacheparams->method),
$cacheparams->methodparams,
$module->id . $view_levels,
$wrkarounds,
$wrkaroundoptions
);
break;
case 'itemid':
default:
$ret = $cache->get(
array($cacheparams->class, $cacheparams->method),
$cacheparams->methodparams,
$module->id . $view_levels . JRequest::getVar('Itemid', null, 'default', 'INT'),
$wrkarounds,
$wrkaroundoptions
);
break;
}
return $ret;
}
}
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